Williams played Teddy Roosevelt in the sequel "Night at the Museum: Secret of the Tomb," which finished production in May and comes out Dec. 19, according to 20th Century Fox. Williams co-stars with Ben Stiller, Owen Wilson, Rebel Wilson, Steve Coogan, Ricky Gervais, Skyler Gisondo, Ben Kingsley and Dan Stevens.

In this film publicity image, Teddy Roosevelt, portrayed by Robin Williams, right, and Larry Daley, portrayed by Ben Stiller are shown in a scene from, "Night at the Museum: Battle of the Smithsonian." (AP Photo/Twentieth Century Fox, Doane Gregory)

He also starred opposite Bob Odenkirk in director Dito Montiel's movie "Boulevard," which debuted earlier this year at the Tribeca Film Festival; it doesn't have a distribution date yet.

Scheduled for release in 2015, "Absolutely Anything" has Williams voicing the animated Dennis the Dog and co-starring with Kate Beckinsale and Simon Pegg.

Williams also was supposed to begin work later this year on a sequel to his 1993 hit "Mrs. Doubtfire."